Wilson had just nine completions for 77 yards in the 10-3 defeat, the Jets losing on a last-second punt return, with the team combining for just 103 yards overall and having more punts (10) than first downs (6).
In the second half, the Jets remarkably gained just two net yards on offense and Saleh gave a blunt description of his side's showing post-game, describing it as "dog s***".
While Saleh also conceded there was never a point where he thought the offense would get going, he retains faith in under-fire quarterback Wilson.
Asked about the status of the 2021 second overall pick, he said: "That's the furthest thing on my mind.
"I've told you guys before, Zach's our quarterback and we're going to, we've got to, find ways to help him get better."
Despite a poor showing that will see criticism on the second-year quarterback increase, Wilson said he does not feel he let down the defense.
"No. It sucks to lose, but we have a lot of season left," he replied.
Defeat leaves the Jets 6-4 for the season in the extremely tight AFC East, with the Patriots having the same record while the Miami Dolphins and Buffalo Bills are 7-3. The Jets host the 3-8 Chicago Bears in Week 12.